Is it dangerous for military members to have profiles on social networks?

What can happen? What are some safe sites?

Is it dangerous for military members to have profiles on social networks?myspace.com quizzes

Just don't celebrate the fact that you're in the military.... And don't answer detailed questions.

Is it dangerous for military members to have profiles on social networks?www myspaces myspace.com

It depends on what information they put out there. There are OPSEC and PERSEC rules in place for a reason. As long as these are not violated, no, it isn't dangerous. Many soldiers choose to stick to secured military networks.
the only time it is dangerous is when you put too much information on there.. i mean its fine to show your military pride and say youre in the military but dont go saying " im in the marines and right now we are in balad iraq and next week we are going on a raid of al-sadrs camp" you know the ol op-sec stuff. its just as dangerous to have a profile as it is to walk around in your uniform
Dont put anything on your profile that you would'nt tell someone that you just met on the street. It is ok to say you are in the Military but dont include your unit or the stength of your unit, any technical details about military equipment you work with and definetly never write anything about current or upcoming deployments.
don't put on your profile that you are gay.

unless you want your Sargent to get to know you better.